Purchased to install hardware on a newly built gate. I'm not a carpenter or even a woodworker. But clear lines and precise depth were achieved with all the mental rehearsals and tools that could be given. I don't even have that nice mallet you see in some ads. Have a rubber mallet. These bits allowed me to cut at the angles I wanted and I got clean results. I would recommend practicing with the same type of scrap wood to learn how the chisels work. Once you know her inclinations, it will be much easier for you to achieve what you want together.